Yes, the chinese bribe KENHA so they do substanrd work, this I know from a guy working with Chinese. But with ARA on full swing - I believe we are on right track to deal with this unsophisticated corruption. Uhuru-Ruto-Raila level will take some time - because they employ sophisticated money laundering schemes. But these ones steal - and go buy plots, build rentals, and that kind of thing - in their names, or wife names or close relatives. These kind of crimes at our level of sophistry we can easily stump out.
ARA should have whistle blower campaign running on the media asking people to snitch of anyone they think is corrupt - and to list their assets.
This could bring enough money to finance some of the gov operations.
Since 2002 the Roads Department engineers have made a fortune. He is just one of the many. I know one who is now in Kenyan standards a billionaire. Works for KENHA. The government has used Chinese contractors to build roads and these are very generous in distributing bribes. Infact they do not even know any other way of doing their job.